<dl id="3b539"><output id="3b539"><meter id="3b539"></meter></output></dl>
<dl id="3b539"><video id="3b539"><output id="3b539"></output></video></dl>
<video id="3b539"></video>
<video id="3b539"></video>
<dl id="3b539"><output id="3b539"></output></dl>
<noframes id="3b539"><dl id="3b539"><delect id="3b539"></delect></dl>
<video id="3b539"><output id="3b539"><delect id="3b539"></delect></output></video>
<video id="3b539"><output id="3b539"></output></video>
<dl id="3b539"></dl>
<dl id="3b539"><output id="3b539"></output></dl>
<address id="3b539"><video id="3b539"></video></address>
<dl id="3b539"></dl>
<output id="3b539"></output>
<video id="3b539"><output id="3b539"><delect id="3b539"></delect></output></video>
<dl id="3b539"><output id="3b539"></output></dl>
<dl id="3b539"><output id="3b539"></output></dl>
<dl id="3b539"><output id="3b539"></output></dl>
<video id="3b539"></video>
<video id="3b539"></video>
<video id="3b539"></video><video id="3b539"><output id="3b539"><delect id="3b539"></delect></output></video>
<video id="3b539"><output id="3b539"></output></video>

我們為您提供化工資料查詢,分享技術資料和最新研究成果!

去氫膽酸

非售品
CAS:81-23-2
分子式:C24H34O5
分子量:402.51

結構式
    


CAS: 81-23-2
分子式: C24H34O5
分子量:   402.51

中文名稱: 去氫膽酸
     脫氫膽酸
     3,7,12-三氧-5β-膽烷酸

英文名稱: Dehydrocholic acid

性質描述: 白色結晶性粉末。熔點237℃。15℃時溶解度(g/L)水0.18,醇3.3,醚0.46,氯仿9.04,苯1.04,丙酮7.76,乙酸乙酯7.4,冰乙酸7.42。無臭,味苦。

生產方法: 將含牛黃膽酸和甘膽酸的膽膏與氫氧化鈉溶液一起加熱煮沸,水解16h后,酸化至pH3,將灰褐色塊狀物濾出,投入熱水中煮沸10min,冷卻,過濾,水洗,抽干,于60-70℃干燥,得膽酸。將膽酸投入乙酸和乙酸鈉溶液中,在10-20℃通入氯氣,直至白色固體全部析出,用大量蒸餾水傾洗,過濾,干燥,得去氫膽酸粗品,經乙醇精制得成品。

用途: 該品屬膽酸類物質,用于膽囊及膽道功能失調、膽囊切除后縮合癥、慢性膽囊炎、膽石癥及慢性肝炎。 

亚洲综合小说另类图片五月天
<dl id="3b539"><output id="3b539"><meter id="3b539"></meter></output></dl>
<dl id="3b539"><video id="3b539"><output id="3b539"></output></video></dl>
<video id="3b539"></video>
<video id="3b539"></video>
<dl id="3b539"><output id="3b539"></output></dl>
<noframes id="3b539"><dl id="3b539"><delect id="3b539"></delect></dl>
<video id="3b539"><output id="3b539"><delect id="3b539"></delect></output></video>
<video id="3b539"><output id="3b539"></output></video>
<dl id="3b539"></dl>
<dl id="3b539"><output id="3b539"></output></dl>
<address id="3b539"><video id="3b539"></video></address>
<dl id="3b539"></dl>
<output id="3b539"></output>
<video id="3b539"><output id="3b539"><delect id="3b539"></delect></output></video>
<dl id="3b539"><output id="3b539"></output></dl>
<dl id="3b539"><output id="3b539"></output></dl>
<dl id="3b539"><output id="3b539"></output></dl>
<video id="3b539"></video>
<video id="3b539"></video>
<video id="3b539"></video><video id="3b539"><output id="3b539"><delect id="3b539"></delect></output></video>
<video id="3b539"><output id="3b539"></output></video>